He had a crowd control baton the size of her hand that expanded with a touch to the thumb pad.
The seldom used water pistols being an effective methods of crowd control.
If you really want to manage the crowd, then an "invitation only" party can help you perform some crowd control.
Because your guests may want to wander in and out of the gated area, you'll need to have some type of armband or stamp system if you want to maintain crowd control.
If the pool is in a residential area, crowd control is a must if you don't want to receive a noise ordinance from the local police department!
